| 摘要 |
A novel psychrophilic protease and a microorganism having the psychrophilic protease producing ability are disclosed. The protease acts on and decomposes casein and dimethylcasein but not on ribonuclease, has an optimal temperature of about 40 ~C. Under the condition of storage at pH 7 for 1 hour, it is inactivated scarcely at a temperature up to 30 ~C, but at 40 ~C it loses about 40 % of the activity. At 50 ~C, the protease is rapidly inactivated so that the activity is completely abolished in about 15 minutes. Flavobacterium balustinum having the protease producing ability is also disclosed. |
